Mixing-valve.



E. F. NIEDEGKBN.

MIXING VALVE:

APPLIUATION FILED sEPT.1 e, 1911.

g@ Patented Feb. 25, 1.913.

UNrTED STATES tfgll GEEK-3E? EDWARD F.- NrEDEoxEN, or MILWAIJKEE, Wiseeinr.

MIHNG-YMNE.

1,054,023. Speemeetiea 0.1 Lettere Rettet Patented Feb. 25,-1Q1.. Appunti@ mea september 1'6, 1911. seria; No. 54935;. Y

To all whom t may concern Beit known th 't LEowan'o e .eltizen of the fmted Statee, residing .at Mllveu'lsee in the eeupntv o Mllvveekeefand State ,of Wisconsin, have invented Certain new and useful improvements in Miele.,- Yalves, of which the'followin lege .Speeieaieetod.

'lt consists in the construction, err-alige- .ment and .combinations `of parts as hereinafter paitoularly deseribedand pointedout in the claims.

.In .the accompanying drawing .like chereot'ers designate the .same parte 1.11 the Severalegefe'e.

. Fnrelis 1 1 ig. 3, of .a .mixing ,valve embodylllg the invention; Fig. 2 isa similar rsmtioii of al orton of the valve case and ,anelevation A,the internal meehaniem ef the valve, allowing valve seats and of different sizes substituted `for those shown `1; Fig. f5 is a section of the valve in a plane indicated by the line 3 3, Fig. 1,

.en .eXel ,seeton on the line perpendicular to the operating stem; Fig. 4:

1 s @enlarged-sectional View of thefhot water valve 'disk and graduatin plug; and Fi 5 is a like view 'of the col Water valve isk and graduating plug.

The valve case a Which is preferably of cylindrical shape, is open at one end and rovded with removable cover Z). It is ormed 0n opposite sides of the center with inlet chambers c and d and with Ia mixing and outlet chamber e which communicates Twith each of the chambers c and through an opening in the intermediate Wall or parreduetne plugsy tition in a plane perpendiular to the yale@ Olltfetiog eten. 'e 'l le the 'valve ie .designed p....r1erilv $9.1 I'e .latine and toet-telling the' jltlre, and de. ive of eeld .elle het veter' el the like, ite eolietrueton .end opeeetieii' ivll be described for the purpose, althoegtn .mea be Sed fer other peleeeee', 'vveeielthe mixture of etheflil'ldein vaylng nnportions is desired. i I I L 'I The ehenfber e, whiell as tlie parte of .tlie lvalve ere assembled .eeen-dine teilte deelving 'in the present' 'ease 'ie .the .inlet elleeller lfor hot Water, has a sup ly connection f, arid the ehamber d .hee .e .ee d'vveter 'eupply'edeneeten g- The' .intel-'meditate' @Xing .and outlet Chamber le hee .e delivery er dihei connection h. An operating `stem z' through e Stullng beX i Onithe Gevel? having a central bearing ic at its inner and in the beek of the @eee between the'elaebers c and d, is threaded lvvithin `the to enge e With e movable valve operativi liek Z. alve disks mare rformed orv rqfviuegdn *one side with stems o which are 1.

and removably secured by Serevve p. @"e- .inge lo the yoke l equsletat .from z' and in a nement'with the o'enivng s' r`" tween the chambers c and@ THie' carn- On'th ir Opposite .See @le dii-52 .ere formed er provided vvitli .eellis'f'n which are removably threaded 'graduating Plugs 71 .and .e .Between the 'slieke'vl'en lie Plugs .T and 8 fenwflbl@ ,Packing rillgs br gee.

erebly reeeeeed te reeelve the ringe Qr'geekts which Aare fitted into them, as 'Fi I 1 "interehengeeble valve .Seats .e having orte of different areas or sizes according if rthe varying .Conditions of tempetetereeefl .ree-

'sure under which the valve ist@ b e use arer threaded or otherwise removably theopenings between thechambersp andd end the ehember .elteee eeetsalre formed with external hexagonal eleggere@ @LYS er @flanges whloh Serve ier SIPQ'YviIig',... into .and .out .of plete with .e .Wll1`e11.;.end

, disk m and terminate at their apexes some .when the seats are screwed into place With f interposed gaskets, they form tight joints with the Wall or partition between the inlet and outlet chambers.

The plugs r and s are made in different 5 sizes to correspond with .the ports in the inj terchangeable seats u, in which they have a l close Working t and are formed with reversely tapered peripheral openings or passages o and fw. In the plug 1" which regulates the ioW of hot Water, the openings or passages 'v converge toward the assoclated distance fromv said disk and in the plug s which regulates the flow of cold Water the passages w diverge toward and terminate at the associated disk m.

The stem e' is provided with an operating handle w having an index or pointer y indicating on the cover, which is graduated or marked for the purpose, the various positions of the valves, disks and plugs for obtaining cold, Warm and hot Water. The loose connections of the disks m with the yoke Z compensate for any inaccuracy in workmanship and fitting, and permit the packin rings or gaskets t to close evenly and tig tly upon the seats u and the plugs 1' and s to Work freely Without binding in the ports formed in said seats.

The construction shown by the drawing and hereinbefore described, provides for readily replacing either valve seat u and graduating plug i" or s for either the hot or cold Water With a seat having a port of different area and a plug of corresponding" size to meet the varying conditions encountered in the installation of the device as to relative pressures and temperatures of the hot and cold Water supplies. For example, the hot Water graduating plug 1 and seat u as shown in Fig. l may be replaced by a plug of smaller size and a seat having a port of correspondingly smaller area as shown in Fig. 2 or vice versa, and the cold Water graduating plug s and seat u as shown in Fig. l may be replaced by a plug of larger size and a seat having a port of arger area as shown in Fig. 2, or vice versa. Such construction also admits of the reversal of the hot and cold Water connections When that 'is necessary or desirable, and furthermore, provides for readily renewing Worn or defective parts such as the disks m, packing rings or gaskets t, seats u and plugs r and s.

To prevent the substitution of the cold Water graduating plug s for a hot Water plug r or vice versa, and accidents resulti-n from a mistake of this kind, the cold ancgl hot Water plugs are made With diderent screw threads and the stems g of the disks m are correspondingly threaded as shown in Figs. 4 and 5 so that in renewing the packchamber and" ,inlet ing rings or gaskets or in changing graduating plugs of any given size for those of other sizes, plugs designed for regulating the supply of hot Water cannot be substltuted for those designed to regulate the supply of cold Water tb the or vice versa.

I claim:

l. In a mixing valve the combination of a case having inlet chambers and a mixing chamber With openings between the mixing chamber and inlet chambers, interchangeable valve seats having ports of different sizes removably secured in said openings, valves fitting into said ports and adapted to close the ports therein, and means for simultaneously operating said valves. l

v 2 lin a Amixing valve the combination of a caseliitving inlet chambers and a mixing chambeg'vvith," openings 'between the mixing ,Y chambers, interchangeable valve' seats removably fitted in said openings 'and formed with ports of different mixing chamber'c sizes according to theconditions of pressure Ithe inletA chambers by partitions formed with;z .'-threaded openings, vtlireald'ed sf tsiitted in said openings and 'formed Witlii interchangeable 'f'..zp'orts of different sizes, interchangeable graduating plugs of diiere'nt sizes tting' said ports, and means for simultaneously opefrating said lugs.

d, lua mixing valve t e combination of a case having inlet chambers and a separate mixing and outlet chamber communieatin with the inlet chambers through openingsvm the intervening partition, externally anged interchangeable valve seats removabl threaded in said openings and formed Wit ports of dilierent sizes, valves fitting into saidports, and means for operating said valves,4 y

5.. 1n a'mixing valve the combination of a case havinginlet chambers with supply connectionsv and a separate mixing chamber with a dischar e connection communicating with the inlet' ambers through o enings in the intervening partition, intere angeable valve seats removabl fitted in said openings and formed with ports of diierent areas, interchangeable' valve disks tt-ing said. seats, graduating plugs of different cured to said disks, a yoke with which said disks are removably connected, and an"operating stemsing through the case and connected Wit sind yoke.

sizes tting said ports and detachably se- 6. 1n a mixing valve the combinationwith of the 'respect-ive closing disks, and means 10 a case having se arate inlet chambers and a for simultaneously operating said disks and mixin and out etchamber communicating plugs.

`With t e inlet chambers through ports in the In witness whereof I hereto affix my signaintervening partition of the oase',- Valve disks ture in presence of two witnesses.

for closin said ports provided with dif- EDWARD F. NIEDECKEN. ferently t readed stems, correspondingly Witnesses: threaded graduating plugs fitting into said CHAs. L. Goss,

ports and removably screwed on the stems ALICE E. Goss. 

